The Simpson BA4.75/20 is a top-flange joist hanger built for double 2-5/16 in. x 20 in. engineered wood members, delivering reliable structural support in demanding framing applications. Part of Simpson's BA series, this hanger is engineered to carry medium loads with solid sawn lumber and higher loads with engineered wood products, making it a cost-effective choice across a broad range of residential and commercial framing projects. Its design accommodates variable nailing schedules for added versatility, and 12-gauge steel construction with a G90 zinc galvanized finish ensures long-term durability in corrosion-prone environments.

Key Features

• Two-level embossment at the top flange - provides increased stiffness, helping the hanger maintain structural integrity under load without additional reinforcement.
• Full-height joist flange - captures the top chord of the joist to prevent rotation and eliminate the need for web stiffeners, reducing labor and material costs on the job site.
• Min./max. nailing options - minimum nailing targets moderate load demands, whereas maximum nailing allows higher loads, giving engineers and builders design flexibility for varying load requirements.
• Available to accommodate sloped and/or skewed members - supports complex framing configurations, reducing the need for custom fabrication in non-standard installations.
• 12-gauge steel construction - delivers the structural strength needed for medium-to-high load applications in both engineered wood and solid sawn lumber framing.
• G90 zinc galvanized finish - provides extra corrosion resistance, making the hanger suitable for use in moisture-prone or treated-lumber environments.

Why This Product

• Engineered for higher loads with EWP - unlike hangers limited to solid sawn lumber, the BA4.75/20 is specifically designed to carry higher loads when used with engineered wood products, making it well suited for modern framing systems that rely on LVL, PSL, or similar members.
• Rotation control without extra hardware - the full-height joist flange captures the top chord of the joist and eliminates the need for web stiffeners, streamlining installation and reducing the total number of components required on the job.
• Built-in design versatility - the min./max. nailing feature lets contractors and engineers optimize the connection for the actual load demand, avoiding over-building while still meeting code requirements when higher capacity is needed.
• Durable finish for long-term performance - the G90 zinc galvanized coating provides extra corrosion resistance, helping the hanger perform reliably over the life of the structure in environments where moisture or treated lumber are factors.

Specifications

• Model Number: BA4.75/20
• Member Size: Double 2-5/16 in. x 20 in.
• Steel Gauge: 12-gauge
• W (in.): 4-3/4
• H (in.): 18
• B (in.): 3
• TF (in.): 2-1/2
• Coating / Finish: Zinc Galvanized, G90
• Country of Origin: Canada

Approved Applications

• Engineered wood product (EWP) framing connections requiring top-flange support
• Solid sawn lumber framing applications requiring medium load capacity
• Structural framing where joist rotation must be controlled without the use of web stiffeners
• Applications requiring design flexibility through variable nailing schedules

Installation

Install with 0.162 in. x 3-1/2 in. nails in the header and 0.148 in. x 1-1/2 in. nails in the joist.

Options

• Other widths are available; specify W dimension (the minimum W dimension is 1 9/16").
  
• For modified hangers, fastener quantity listed in tables may need to increase depending on joist size, skew and slope. All modified hangers are 12 ga.
• Hangers may be modified for slopes and/or skews up to 45 deg.. The top flanges may be sloped as much as 35 deg. and may be open or closed up to 30 deg.. See Modifications and Associated Load Reductions under Specifications
• Contact us for Customizations and Special orders